Tunnel-head.



' NITED smi-ins. 'PATENT f'QDoLPH B. Brahms, or UNIoNTo-WN, PENNSYLVANIA.

OFFICE.-

TUNNEL-HEAD.

Application sied January 18,1907. seria No. 352,955;

To all whom it 'may concern: l Be it 'known tha't- L-ADOLPH B. BITTNR, a citizen of the UnitedStates of America, residing at Uniontown, in the' county of Fayette and State ofiPennsylvania, have inventednew and useful Improvements inlTunnel- Heads, of' which the following is a specification'.

or flue-ring for coke ovensof the {bee-hive or arch ed- .Thisinvention relates te an'improved tunnel head crown-wall type, the object of the'invention ,being to provide a device of this character which may'beccoi nornieally manufactured and is not 'liable to bel easily .cracked Vunder the heat of the oven, which may be view of one of the sectins of the Referring to the drawing,

.40 .chambers being arrange-d side readily set in position and repaired when occasion 'rey j quires, which will not work in its receiving opening'- andA l 15 fall down into the oven, which will, to a'largepxtent,

prevent entrance of rain ,water to the oven, and which may be varied Ain diameter foruse in connection with Atunnel head and applied "different sizes 'of ovens.

A further 'object of the invention isito provide aire.- movable strengthening band or rim for attachment to the crown orflange of the' headto protect' the same from chipping or breaking when the ov'en is filled with coal through the head and will also serve to form a projecting mouth or rim to through the head and .preventthe lsame from, fiowing over'or falling from the head, as well as to provide a damper carried by the band for `us'einelosin'g the head to retain the heat in the oven after 'the Withdrawn and until the su supplied.A a In the accompanying drawingf-Figure fis a vertical sectional view through aportion of a i showingthe'apphcatidn of my invention to one. of the44 coke has been battery of ovens,

oven chambers. Fig.' 2 is a perspective viewofthe transverse section of the same. -Fig. 4 is-aperspective I headrff A' a' series of coke oven chambers ner and separated by division walls gfeachcham-ber being formed with an'arch'edtop wall 3;, which is 'covg cred with a surface layeror'filling'f' of earth or 'other :suitable maternal extending. to th'e level of'thetop of the body portion of each tunnel head and confoii'ning iny contour tlthc crown wall.

, Each arch 3 is provided with'a crownopening 5 for i theUrecep'tion of a tunnel-head or flue-ring' 6, havinga v crdwii flange 7 extending outwardly and upwardly at -ah oblique angle and resting at Aits base upon the surface filling 4 to support thering'in position. against down- AWard movement in the opening 5, the' outer surface of the body of the head being also preferably tapered to,`

wedge into4 theA opening and assist in. slreliffnnction.

The' body and flange of the head arelongitulitally and radially divided 4torespectively form a ser-ies of'seg- Specification of Letters Patent.

facilitate the entrance of coal' the numeralll represents. of a battery 'of ovens, the b`ysi l e in'the usual mantoa largeextent the Patented Aug. 6, 1x96?.

mental sections 8, each comprising'a vertical limb 9 having an out-turned upper projection l0, the projeci tions of thesev eral sections 8 forming the H ange In practice the head may be madeof any desired number of sections of this character which areadapted to' be' fitted together in the manner shown in FigsY 2' and'3 to 'form the complete head. The head may be varied in diameter to fit different 'sized openingsin oven chambers of different Vcapacities by simple increas-A ing 'or decreasing the I readily understood.

zontally 'one above the other.- tion referred to has been heretofore employed'to facilitate the handling and ,setting 65 number of sections, as will be i The parts or sections of the head are preferably made of fire clay or some other suitable., material, 'i Tunnel-heads of this character have heretofore beenV made in a single piece or of ringi`sections disposed hori- The sectional construcof the head in position, t f as these heads are heavy and comparatively difiicult to handle. The objection to the ordinary form of headis that under the weight thereof it is liable to work its way graduallyv down into the opening 5 anddrop in the'course of timeinto the oven, thereby enlarging said opening and mutilatingthe wall 3 in 'such a manneil as to render it difficult to repair it.

Another objectionto' theordinary form of head rev sides .in its inability to rise and fallwith the Wall 3 in its expansion and contraction without breaking.A Therefore, heads-oil this character asfheretoore constructed are a source-of cor'isiderable expense, owing t lthe fact thattheyfbecome easilyfchipped orbroken and must be frequently removed and replaced.' M /y proved construction lobviates these `objections free to expand and contract with the wall wtl'i'iw lshifting in the opening 5, and, if one section should chipped or otherwise damaged-,it maybe Aremoved by aj simple upward sliding movement and4 another slid i downward in its'place. '.The headmay also be jcon:

veniently set within the sections thereofmay be independently inserted in position. The tapered form of the head prevents it fromreceiving opening 5, as the`- working downl into the opening 5, while the weight of I' the head is supported by the'flange 7 vwhich r'ests upon the filling 4, 'thus preventing transfer of strain tothe arch 3j. Ih addition, the flange 7- projects above the surfacefilling andforms a curbcr barrier to prevent head into the' oven chamber, the-water .being -caused passage of rainwater through the 1 05 'ico 'to flow'thercfroindown the incl-ined sides of the filling into the depressed portions between adjacent fillings` `Irrconjunction with thehead I employ a'protccting metal ring or band il to encircle and A or breaking of the flange 7 inthe operation of fil-lingthe ovon'ichamber with coal, The ring bears against the prevent chipping;V

e'dgeof the flange and projects upwardly therefrom A' to form a curb or rim l2 to retain the coal discharging from the chute and prevent it from falling olf the hemd.

A receiving pocket is thus formed to facilitate the inlet its ends being laterally projected to iorin ears 13 :id-v

1() .justably connected by a bolt i4. A damper plate l5 is provided at one side with a lug .i6 pivotally mounted between the ears in any preferred manner so that said plate may be swung,y over the top oi the tunnel-head and rested upon the upper edge or' the band to cut ofi the draft through the head,` thus enablingI the heut to b e retained Within. the oven alter the collie has been Withdrawn and until the oven is to be refilled with coal. At the side opposite the lug '16 the dznnperplate is provided Wth a handle 17 by which it may be manipulated 20 and preferably the plate is .formed with 2t depending Harige 18 to 'project downward on the inner side ol' the ,rim l2 and seat against the top surface of the Harige 7 so as to forni a, tight closure and to enable the weight of thedarnper to be efiectunlly supported.

The band and dzunper muy iorrn a p'ernnnient attachnient of the tunnel-head, or removed or trrinslerred from head to heed for use, :is occasion requires, in the operation oi u plurality of ovens.

Having thus described the invention, what is claimed as new, is

1. A tunnel-head having u flange, and :i protecting; band about said flange. l

2. A tunnel-heud having a' flange, and n protectingr bund about said (lange, snd bund projecting' above the flange to form f1 rixn. i

3. A tunnehheud having :1 flange, and un adjustable protecting' bund engaging the flange.

4. A tunnel-heardhuvng :1 tlunge, n split protecting band surrounding the flange, und meuns ndjustnbly connecting the ends of the hand.

5. A tunnehhend having :i crown flange, said head being composed oi' u plurality of sections, :ind a protecting hund inclosing the rim of the flange.

G4 A tunnehheud huviru,r n crown flange, :i protectingA bund surrounding the ilunge, :ind a damper cnrrred by tliehund.

7. A tunnel-hemd having u crown flange, u protecting4 hund surrounding the flange, und a hinged damper czl'rried hy the bund.

S. A tunnel-heard haringr u crown flange, :i protecting bund engaging' the ilunge and projecting uhove the suine to forma rim. und u damper hinged to the lmnd to .sent upon snid rim und having.; :i Ilunge to fit down upon the interior thereof.

ln testimony whereof, I nilix my signature npresence ot' two witnesses.

ADOIIIII D. UIT'INICR.

Witnesses 0. l'. Mmmm-1, 1. FRANK. 

